Home / 4,287.60-5,917.56-3,108.24

Finding the Fourth Proportional to 4,287.60, 5,917.56 and 3,108.24

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Solution

The fourth proportional to 4,287.60, 5,917.56 and 3,108.24 is: 4,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.60 : 5,917.56 = 3,108.24 : x
  2. Step 2: Convert to fraction form
    4,287.60/5,917.56 = 3,108.24/x
  3. Step 3: Cross multiply
    4,287.60x = 5,917.56 × 3,108.24
  4. Step 4: Simplify right side
    4,287.60x = 18,393,196.69
  5. Step 5: Solve for x
    x = 18,393,196.69/4,287.60
  6. Step 6: Final answer
    x = 4,289.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.